IT1031665B - CIRCUIT ARRANGEMENT FOR CHECKING THE STATUS OF THE USER LINE IN A TELEPHONE AND DATA NETWORK - Google Patents

CIRCUIT ARRANGEMENT FOR CHECKING THE STATUS OF THE USER LINE IN A TELEPHONE AND DATA NETWORK

Info

Publication number
IT1031665B
IT1031665B IT20180/75A IT2018075A IT1031665B IT 1031665 B IT1031665 B IT 1031665B IT 20180/75 A IT20180/75 A IT 20180/75A IT 2018075 A IT2018075 A IT 2018075A IT 1031665 B IT1031665 B IT 1031665B
Authority
IT
Italy
Prior art keywords
telephone
checking
status
data network
circuit arrangement
Prior art date
Application number
IT20180/75A
Other languages
Italian (it)
Inventor
G Biraghi
C A Manghi
Original Assignee
Sits Soc It Telecom Siemens
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to ZA00760075A priority Critical patent/ZA7675B/en
Application filed by Sits Soc It Telecom Siemens filed Critical Sits Soc It Telecom Siemens
Priority to IT20180/75A priority patent/IT1031665B/en
Priority to FR7535634A priority patent/FR2301138A1/en
Priority to CH13476A priority patent/CH610162A5/xx
Priority to PT64688A priority patent/PT64688B/en
Priority to BR7600280A priority patent/BR7600280A/en
Priority to GB2362/76A priority patent/GB1540414A/en
Priority to ES0444676A priority patent/ES444676A1/en
Priority to US05/657,388 priority patent/US4024360A/en
Priority to DE19762605614 priority patent/DE2605614A1/en
Application granted granted Critical
Publication of IT1031665B publication Critical patent/IT1031665B/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Monitoring And Testing Of Exchanges (AREA)
  • Interface Circuits In Exchanges (AREA)
  • Telephonic Communication Services (AREA)
IT20180/75A 1975-02-12 1975-02-12 CIRCUIT ARRANGEMENT FOR CHECKING THE STATUS OF THE USER LINE IN A TELEPHONE AND DATA NETWORK IT1031665B (en)

Priority Applications (10)

Application Number Priority Date Filing Date Title
ZA00760075A ZA7675B (en) 1975-02-12 1975-01-06 Circuit arrangement for controlling the state of a user's line in a speech and data network
IT20180/75A IT1031665B (en) 1975-02-12 1975-02-12 CIRCUIT ARRANGEMENT FOR CHECKING THE STATUS OF THE USER LINE IN A TELEPHONE AND DATA NETWORK
FR7535634A FR2301138A1 (en) 1975-02-12 1975-11-21 CIRCU
CH13476A CH610162A5 (en) 1975-02-12 1976-01-07
PT64688A PT64688B (en) 1975-02-12 1976-01-12 CIRCUIT DEVICE FOR VERIFYING THE U-NE STATE OF A SUBSCRIBER IN A TELEPHONE NETWORK WHICH WOULD BE USED FOR DATA PROCESSING COMMUNICATION
BR7600280A BR7600280A (en) 1975-02-12 1976-01-19 CIRCUIT ARRANGEMENT FOR USER LINE STATE CONTROL IN A PHONIA AND DATA NETWORK
GB2362/76A GB1540414A (en) 1975-02-12 1976-01-21 Circuit arrangements for detecting the state of subscriber lines in speech and data networks
ES0444676A ES444676A1 (en) 1975-02-12 1976-01-28 Improvements in telephone circuits (Machine-translation by Google Translate, not legally binding)
US05/657,388 US4024360A (en) 1975-02-12 1976-02-11 Station checking network for telecommunication system
DE19762605614 DE2605614A1 (en) 1975-02-12 1976-02-12 CIRCUIT ARRANGEMENT FOR CHECKING THE CONDITION OF THE SUBSCRIBER CABLES IN A REMOTE INDICATION SYSTEM

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT20180/75A IT1031665B (en) 1975-02-12 1975-02-12 CIRCUIT ARRANGEMENT FOR CHECKING THE STATUS OF THE USER LINE IN A TELEPHONE AND DATA NETWORK

Publications (1)

Publication Number Publication Date
IT1031665B true IT1031665B (en) 1979-05-10

Family

ID=11164470

Family Applications (1)

Application Number Title Priority Date Filing Date
IT20180/75A IT1031665B (en) 1975-02-12 1975-02-12 CIRCUIT ARRANGEMENT FOR CHECKING THE STATUS OF THE USER LINE IN A TELEPHONE AND DATA NETWORK

Country Status (10)

Country Link
US (1) US4024360A (en)
BR (1) BR7600280A (en)
CH (1) CH610162A5 (en)
DE (1) DE2605614A1 (en)
ES (1) ES444676A1 (en)
FR (1) FR2301138A1 (en)
GB (1) GB1540414A (en)
IT (1) IT1031665B (en)
PT (1) PT64688B (en)
ZA (1) ZA7675B (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4258332A (en) * 1976-10-15 1981-03-24 Wheelock Signals, Inc. Loudspeaker amplifier
NL7614000A (en) * 1976-12-17 1978-06-20 Philips Nv SIGNALING SYSTEM FOR OVERVOLTAGE PROTECTORS.
US5680397A (en) * 1995-03-13 1997-10-21 International Business Machines Corporation Multi-port LAN switch for a token-ring network
GB9614561D0 (en) 1996-07-11 1996-09-04 4Links Ltd Communication system with improved code
WO1999053627A1 (en) 1998-04-10 1999-10-21 Chrimar Systems, Inc. Doing Business As Cms Technologies System for communicating with electronic equipment on a network
US6507608B1 (en) * 2000-02-23 2003-01-14 2Wire, Inc. Multi-line ADSL modulation
US7023910B1 (en) 2000-12-21 2006-04-04 2Wire, Inc. Dual-line DSL system and method
EP1805927A1 (en) * 2004-10-11 2007-07-11 2Wire, Inc. Periodic impulse noise mitigation in a dsl system
US7953163B2 (en) * 2004-11-30 2011-05-31 Broadcom Corporation Block linear equalization in a multicarrier communication system
US7852950B2 (en) * 2005-02-25 2010-12-14 Broadcom Corporation Methods and apparatuses for canceling correlated noise in a multi-carrier communication system
US9374257B2 (en) * 2005-03-18 2016-06-21 Broadcom Corporation Methods and apparatuses of measuring impulse noise parameters in multi-carrier communication systems
US7382774B2 (en) * 2005-05-31 2008-06-03 Falco Anthony R Bankover connection system
US7813439B2 (en) * 2006-02-06 2010-10-12 Broadcom Corporation Various methods and apparatuses for impulse noise detection
US8605837B2 (en) 2008-10-10 2013-12-10 Broadcom Corporation Adaptive frequency-domain reference noise canceller for multicarrier communications systems

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3417210A (en) * 1965-02-12 1968-12-17 Bell Telephone Labor Inc Condition testing arrangement
US3444336A (en) * 1966-07-22 1969-05-13 D O Creasman Electronics Inc Pressurized cable fault signal circuit
US3624316A (en) * 1969-04-11 1971-11-30 Superior Continental Corp Subscriber pressure alarm system
US3731012A (en) * 1971-09-30 1973-05-01 Stromberg Carlson Corp Current limiting and resistance monitoring circuit

Also Published As

Publication number Publication date
FR2301138A1 (en) 1976-09-10
GB1540414A (en) 1979-02-14
ZA7675B (en) 1976-12-29
PT64688B (en) 1977-08-09
FR2301138B1 (en) 1981-02-13
US4024360A (en) 1977-05-17
ES444676A1 (en) 1977-05-16
CH610162A5 (en) 1979-03-30
PT64688A (en) 1976-02-01
DE2605614A1 (en) 1976-09-09
BR7600280A (en) 1976-09-14

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